from datetime import datetime
from settings import db


class BaseModel(db.Model):
    __abstract__ = True
    id = db.Column(db.Integer, primary_key=True)
    created_at = db.Column(db.DateTime, default=datetime.now)
    updated_at = db.Column(db.DateTime, default=datetime.now, onupdate=datetime.now)
    def create(self):
        db.session.add(self)
        db.session.commit()

    def update(self):
        db.session.commit()

    def delete(self):
        db.session.delete(self)
        db.session.commit()
